There seems no ideal method to mine medium grade, gentle dip and medium thickness orebody.

对于矿石价值中等、品位中等的缓倾斜中厚矿体，目前无理想的采矿方法。

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The combined flowsheet can greatly improve comprehensive utilization of Bayan Obo low and medium grade oxide ores.

磁浮联合流程大大提高了白云鄂博中贫氧化矿综合利用程度。

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The host rocks of the ore bodies, the Gaixian Formation of Liaohe Group, are a medium grade metamorphosed rock of the Early Proterogoic.

矿体围岩为早元古界辽河群盖县组中部变质岩系。

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It found a good supply of medium-grade crude but had to shut in the well for lack of a pipeline to get the oil to market.

FORBES: OutFront